Joy stick



FIG. 1 is a perspective view of a joy stick showing my design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right rear perspective view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The ornamental design for a joy stick, as shown and described.